RECHARGED BY SUNSHINE 6HOURS,CAN LAST LIGHTING 7-8HOURS,WITH THREE FUNCTION -STRONG -LOW-FLASH. 5LED SOLAR HEADLIGHTMATERIALS:ABSPRODUCTION SIZE:67x52x46mmWEIGHT:65GBATTERY:LI-ION 550MAH TECHINCAL DATA:5.5v/90MAH MONOCRYSALLINE STALLINE,UNDER SUNSHINE,6HOUSR WILL BE FULL,CAN LAST LIGHTING ABOUT 7-8HOURS.HAVE STRONG LIGHT,LOW LIGHT,FLASH THREE FUNCTION. 5LED SOLAR HEADLAMP